<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../js/vue.js"></script>
</head>
<body>
    <div id="app">
        <div>{{counter}}</div>
        <button v-on:click="increment">点击自增</button>
    </div>
    <script type="text/javascript">
        new Vue({
            el:'#app',
            data: {
                counter: 0
            },
            methods: {
                increment: function() {
                    this.counter++;
                }
            }
        });
    </script>
</body>
</html>